No I do not have a yellow switch on the handle. I tried some calibration before that someone said to do but we did not have the same model. I cant remember how it went.Something like hold both handles out and lift seat bar? I dont think that was it. Do you know of a calibration procedure for this model/year ? Well I got the bucket off and the machine onto a trailer and towed to a friends house. We ordered the repair manuals. I hope I can figure this on out! There are two actuators on this a top and bottom one on the valve block under where the hand throttle is... correct